• Title/Summary/Keyword: Late effects

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Seasonal Occurrence and Chemial Control Effects of Eriococcus largerstroemiae Kuwana on Persimmon Trees (감나무의 주머니깍지벌레에 대한 발생생태 및 화학적 방제효과)

  • 권태영;박소득;박선도;최부술;권용정
    • Korean journal of applied entomology
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    • v.34 no.4
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    • pp.295-299
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    • 1995
  • This study was conducted to find the control methods, status of overwintering and seasonal occurrence of Erioccoccus largerstroemiae on persimmon trees in Ch'ondo area, Kyongbuk province in Korea. Usually, overwintering eggs were sheltered in bark, among them the rate of alive eggs was 28.7%. The activiation of garpe-myrtle scale showed from late April, and they have three generations per year. The first occurrence of larval stage of Erioccoccus largerstroemiae starts from late June to early July, the second occurrence begins from middle August to late August, and from late June to early July, the second occurrence begins from middle August to late August, and from middle September to late September is the third, thus, three peaks of occurrence revealed in early July middle August, and late September respectively. Average number of eggs conceived in female adult was 229.3. Spray effect of chemical control showed as follows; lime sulfur with tow applications of pesticides (late June, late August) at 97.8%, machine oil with tow applications of pesticides (late June, late August) at 96.8%. And during the growing period, the spray results using three applications of pesticide only (late June, late August, amid September) showed 77.2% in field condition.

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Late side effects of radiation treatment for head and neck cancer

  • Brook, Itzhak
    • Radiation Oncology Journal
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    • v.38 no.2
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    • pp.84-92
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    • 2020
  • Patients undergoing radiation therapy for head and neck cancer (HNC) experience significant early and long-term side effects. The likelihood and severity of complications depends on a number of factors, including the total dose of radiation delivered, over what time it was delivered and what parts of the head and neck received radiation. Late side effects include: permanent loss of saliva; osteoradionecrosis; radiation recall myositis, pharyngoesophageal stenosis; dental caries; oral cavity necrosis; fibrosis; impaired wound healing; skin changes and skin cancer; lymphedema; hypothyroidism, hyperparathyroidism, lightheadedness, dizziness and headaches; secondary cancer; and eye, ear, neurological and neck structures damage. Patients who undergo radiotherapy for nasopharyngeal carcinoma tend to suffer from chronic sinusitis. These side effects present difficult challenges to the patients and their caregivers and require life-long strategies to alleviate their deleterious effect on basic life functions and on the quality of life. This review presents these side effects and their management.

Effects of Swirl on Flame Development and Late Combustion Characteristic in a High Speed Single-Shot Visualized SI Engine (고속 단발 가시화 스파크 점화 엔진에서의 연소 특성에 대한 선회효과 연구)

  • Kim, S.S.;Kim, S.S.
    • Transactions of the Korean Society of Automotive Engineers
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    • v.3 no.1
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    • pp.54-64
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    • 1995
  • The effects of swirl on early flame development and late combustion characteristic were investigated using a high speed single-shot visualized 51 engine. LDV measurements were performed to get better understanding of the flow field in this combustion chamber. Spark plugs were located at half radius (R/2) and central location of bore. High speed schlieren photographs at 20,000 frames/sec were taken to visualize the detailed formation and development of the flame kernel with cylinder pressure measurements. This study showed that high swirl gave favorable effects on combustion-related performances in terms of the maximum cylinder pressure and flame growth rate regardless of spark position. However, at R/2 ignition the low swirl shown desirable effects at low engine speed gave worse performances as engine speed increased than without swirl. There were distinct signs of slow-down in flame growth during the period when the flame front expanded from 2.5mm in radius until it reached 5.0mm apparently due to the presence of ground electrode. There seemed to be heat transfer effect on the flame expansion speed which was evidenced in high swirl case by the slowdown of the late flame front presumably caused by relatively large heat loss from burned gas to wall compared with low- or no-swirl cases.

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Effects of Late School-Aged Children's Perception of the Mother's Response to Negative Emotions and Ego Resilience on their Life Satisfaction (부정적 정서에 대한 어머니 반응 지각과 자아 탄력성이 학령기 후기 아동의 생활만족도에 미치는 영향)

  • Lee, Sang Hui;Lee, Sook
    • The Korean Journal of Community Living Science
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    • v.26 no.2
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    • pp.237-248
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    • 2015
  • This study examines the effects of late school-aged children's perception of their mother's responses to negative emotions and their ego resilience on their life satisfaction. Data were collected from 390 fifth- and sixth-graders residing in Kwangju, Korea. With the data, frequency, percentages, and Cronbach's ${\alpha}$ were calculated. Pearson's product moment correlation coefficients and hierarchical regression analyses were also considered. The effects of various variables on life satisfaction were analyzed, and according to the results, vitality had the greatest effect on life satisfaction, followed by vitality, optimism, emotional coaching responses, interpersonal relationships, emotion-reducing responses, emotion control, and the material employment status, in that order. The study contributes to the literature by providing additional insights into the mother's desirable responses to children's negative emotions and highlighting the importance of positive ego resilience in children's life satisfaction through the elucidation of effects of late school-aged children's perception of their mother's responses to negative emotions and their ego resilience on their life satisfaction.

The Study on Concentrations of Plasma Zinc and Copper of Nonpregnant and Pregnant in Korea (한국의 일부 가임여성과 임신부의 혈장내 아연 및 구리 농도에 관한 연구)

  • 하은정
    • Journal of Nutrition and Health
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    • v.26 no.3
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    • pp.347-356
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    • 1993
  • Plasma concentrations of zinc and copper were measured in 59 non-pregnant women and 105 pregnant women(12 ; early pregant, 93 ; late pregnant) to estimate and compare both groups and to detect the effects of iron supplementation on the plasma zinc and copper concentrations in the pregant women. The mean plasma zinc concentration of the early pregnant group was not significantly different with those of the non-pregnant group. But in contrast, the mean plasma zinc concentration of the late pregnant group was significantly lower than those of the non-pregnant and early pregnant group. Mean plasma copper concentration were significantly elevated in ealry pregnant group and doubled in late pregnant compared to non-pregnant. In Fe supplemented group, mean plasma zinc concentrations were lower and mean plasma copper higher than those of Fe non-supplemented group. It appeared that Fe supplementation had effects on the decrease of plasma zinc concentrations in pregnancy.

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Effects of Microbial Communication on The Growth of Periodontopathogens

  • Lee, Chung-Koo;Baek, Dong-Heon
    • International Journal of Oral Biology
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    • v.35 no.4
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    • pp.197-202
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    • 2010
  • Most oral microorganisms exist as biofilms which initiate formation via the attachment of an early colonizer to host proteins on the tooth surface. Fusobacterium nucleatum act as a bridge between early and late colonizers. Dental biofilms eventually comprise dental pathogens such as Porphyromonas gingivalis, Treponema denticola and Tannerella forsythia. To evaluate the effects of mutual interactions between oral bacteria on the growth of biofilms, periodontopathogens were co-cultured with a $0.4\;{\mu}m$ barrier. Streptococcus gordonii inhibited the growth of F. nucleatum and periodontopathogens. However, F. nucleatum, P. gingivalis and T. denticola activated the growth of other bacteria. A co-culture system of early and late colonizers could be a useful tool to further understand bacterial interactions during the development of dental biofilm.

The Effects of Inhibitors of DNA Polymerases and Topoisomerase on Chromosome Aberrations Induced by Mutagens in Synchronized Mammalian Cells (동시화된 포유동물 세포에서 돌연변이원에 의해 유발된 염색체 이상에 미치는 DNA중합효소와 DNA위상이성질화효소의 저해제의 효과)

  • 엄경일;신은주;권영순
    • Environmental Mutagens and Carcinogens
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    • v.10 no.2
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    • pp.85-92
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    • 1990
  • The effects of aphidicolin (APC), 2`,3`-dideoxythymidine 5`-triphosphate (ddTTP), and novobiocin (NOV) on the frequencies of chromosome aberrations induced by ethyl methanesulfonate (EMS) or bleomycin (BLM) were examined in synchronized Chinese hamster ovary (CHO)-K$_1$ cells. The cells were synchronized by the thymidine double block method. APC, ddTTP and NOV alone did not affect the frequencies of chromosome aberrations. The cells in late G$_1$ and early S phases were sensitive to the induction of chromosome aberrations by EMS, wherase cells in G$_2$ phase were most sensitive to chromosme aberration by BLM.

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Effects of a Health Promotion Program on Healthy Aging Preparation for Late Middle Aged Women (중년후기 여성의 건강한 노후준비 건강증진 프로그램 효과)

  • Choi, Hee-Jung;Suh, Soon-Rim
    • Korean Journal of Adult Nursing
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    • v.27 no.5
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    • pp.594-603
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    • 2015
  • Purpose: The purpose of this study was to examine the effects of health promotion program on healthy aging preparation for late middle aged women. Methods: The research design was a non-equivalent control group quasi-experimental study. Participants were recruited from K and Y cities in Gyeong-nam Province from October, 2013 to January, 2014. They were 26 for the experimental group and 31 for the control group. The experimental group participated in a health promotion program for healthy aging preparation. The program consisted of education, exercise, and small group discussion over 8 weeks. Data were analyzed by Chi-square, t-test and ANCOVA, using the PASW 18.0 program. Results: There were significant improvements in aging anxiety and general self-efficacy, health promoting behaviors in the experimental group compared to those of the control group. However, there was no significant differences in attitude toward older adults between the two groups. Conclusion: The health promotion program on healthy aging preparation for late middle aged women was found to be effective in enhancing aging anxiety and self-efficacy, and health promoting behavior. Thus, the developed program is recommended for use in clinical practice as an effective nursing intervention for late middle aged women in order to keep up with their health in later life.

Effects of dietary Enteromorpha powder on reproduction-related hormones and genes during the late laying period of Zi geese

  • Ma, Wei Qing;Zhao, Dan Hua;Cheng, Huang Zuo;Wang, Si Bo;Yang, Ji;Cui, Hong Xia;Lu, Ming Yuan;Wu, Hong Zhi;Xu, Li;Liu, Guo Jun
    • Animal Bioscience
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    • v.34 no.3_spc
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    • pp.457-462
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    • 2021
  • Objective: The aim of this study was to investigate the effects of Enteromorpha powder supplementation on reproduction-related hormones and genes in the late laying period of Zi geese. Methods: A total of 312 (1-year-old) Zi geese with similar laying rate were randomly divided into 2 groups with 6 replicates each, each with 21 female geese and 5 male geese. The control group was fed with a basal diet and the test group was fed with a diet containing 3% Enteromorpha powder. The trial period lasted for 7 weeks. Results: Our results showed that the laying rate was improved in the test group at each week of trial (p<0.01), and the levels of estradiol in serum and prolactin in ovary were increased compared with the control group (p<0.05). Conclusion: Based on above results, Enteromorpha powder supplementation at 3% could promote reproductive performance during the late laying period of Zi geese.

Clinical Study of Nimotuzumab Combined with Chemotherapy in the Treatment of Late Stage Gastric Cancer

  • Xu, Chong-De
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.23
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    • pp.10273-10276
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    • 2015
  • Objective: To explore the clinical effects of nimotuzumab combined with chemotherapy in the treatment of late gastric cancer. Methods: A total of 34 reoccurrence or metastatic patients with late stage gastric cancer who were confirmed by histopathology and/or cytology were selected and randomly divided into observational and control groups, of 17 cases each. Patients in the control group were treated with the standard DCF plan, while patients in observational group additionally received nimotuzumab. The short-term and long-term efficacy and adverse reactions in the 2 groups were followed. Results: The objective response rate (ORR) and disease control rate (DCR) were 64.7% (11/17) and 82.4% (14/17) in observational group and 25.0%(4/16) and 37.5%(6/16) in the control group(ORR and DCR between 2 groups, ${\chi}^2=5.2412$, P=0.0221 and ${\chi}^2=6.9453$, P=0.0084). The median progression-free survival (PFS) time and median overall survival (OS) time were 6.50 months and 12.50 months in observational group and 4.50 months and 8.25 months in the control group (P=0.0212; P=0.0255). The main toxic and side effects in the 2 groups were reduced leukocytes and hemoglobin, gastrointestinal reactions and hair loss and these were relieved after symptomatic treatment and nutrition support therapy. There were no differences in the occurrence of toxic and side effects between the 2 groups. Conclusions: Nimotuzumab combined with DCF plan is effective in treating late stage gastric cancer. A larger scale study is now warranted for confirmation of the findings.